September is a good month at Petrified Forest — it ranks 9th of the twelve here. Expect about 33% fewer visitors than June, the park's peak — 42,663 visits on average. Days run around 82°F by afternoon and 51°F at night, with 12.3 hours of daylight.
September against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| September (this page) | Good | 42,663 | −33% | 82°F | 51°F | 0" | 12.3 h |
| February (best) | Excellent | 21,056 | −67% | 53°F | 25°F | 0.1" | 10.9 h |
| June (peak crowds) | Tough | 63,918 | peak | 89°F | 53°F | 0" | 14.5 h |
Weather figures are for the Painted Desert Visitor Center area — the Painted Desert NP station. Visits are 2021–2025 averages; climate normals cover 1991–2020. Conditions vary across the park; check current status before you go.
Common questions
Is September a good time to visit Petrified Forest?
It is a reasonable month — the park has stronger ones, but the records don't argue against it. September ranks 9 of 12 at Petrified Forest on crowds, weather, daylight, and access together.
How crowded is Petrified Forest in September?
About 42,663 recreation visits on average — 33% below June, the park's peak.
How warm is Petrified Forest in September?
Average highs around 82°F and lows around 51°F at the Painted Desert NP station.
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